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公开(公告)号:US07135205B2
公开(公告)日:2006-11-14
申请号:US10506412
申请日:2003-02-28
申请人: Paul L. Smith , Peter W. Faguy , Andrew T. Hunt , Charles McKendrie Quillian, V , William John Dalzell, Jr. , Frank C. Witbrod , Stein S. Lee , William Harm , Joanne Yardlyne Smalley , Mark Batich , William Hoos
发明人: Paul L. Smith , Peter W. Faguy , Andrew T. Hunt , Charles McKendrie Quillian, V , William John Dalzell, Jr. , Frank C. Witbrod , Stein S. Lee , William Harm , Joanne Yardlyne Smalley , Mark Batich , William Hoos
CPC分类号: H01M4/8807 , C23C16/453 , H01M4/0419 , H01M4/8605 , H01M4/886 , H01M4/8867 , H01M8/04197 , H01M8/04291 , H01M8/1004
摘要: To form an ionomer-based catalytic layer on a porous substrate, a heat source (40) is used to dry an ionomer-containing spray (46) so that it does not substantially liquid flow on the substrate (14). The ionomer spray (46) may contain a catalyst. A spray (46) of mixed material for forming the catalytic layer is entrained by a gas stream and is heated and directed to a substrate surface (12). For hydrogen/oxygen fuel cells, catalytic material is incorporated into the proton-conducting membrane (56) to convert diffusing oxygen and hydrogen to water to reduce potential loss at the electrodes and maintain hydration of the proton-conducting membrane (56).